Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Archery Accuracy0.018711473524%7.0Harden
Average Character0.0054672188840%2.0Easyen
Black and White0.0759244218341%4.9Mediumen
Circle Bounce0.0020022511049%4.9Mediumen
Diagonals0.0018532146731%7.2Harden
Dorm Room Divide0.03476169022113%6.7Harden
Double Password0.0054446256158%1.6Easyen
Fail Them All!0.0089947911524%8.1Harden
Hopscotch 5000.1187866414121%7.3Harden
Overdraft0.0053065126141%2.1Easyen
Problem Set Construction0.01940833542%6.9Harden
Reversibly Cyclic Strings0.00572432445%3.2Mediumen
Rise and Fall0.0088113827224%4.7Mediumen
Scaling Recipe0.005199390545%1.9Easyen
Shortest Missing Subsequences0.0939439512532%6.0Harden
Square Bounce0.005031775531%6.1Harden
Tetris Generation0.0090127630624%6.1Harden
Tournament Seeding0.0322052423044%4.0Mediumen
Tree Hopping0.02893104130830%6.3Harden
Who Goes There?0.00119133041932%3.9Mediumen
XOR Island0.0029132310533%7.1Harden